Pusher roller unit



FIG. 1 is a front elevational view of a pusher roller unit showing my new design;

FIG. 2 is a sectional view thereof, taken along the line II--II of FIG. 1;

FIG. 3 is a front perspective view thereof, the rear perspective view being a mirror image of that shown;

FIG. 4 is a top plan view thereof. 

The ornamental design for a pusher roller unit, substantially as shown and described. 